85423900 under HS Code ELECTRONIC INTEGRATED CIRCUITS - ELECTRONIC INTEGRATED CIRCUITS -- OTHER, 90318090 under HS Code Others, and 90303390 under HS Code OSCILLOSCOPES, SPECTRUM ANALYSERS AND OTHER INSTRUMENTS AND APPARATUS FOR MEASURING OR CHECKING ELECTRICAL QUANTITIES, EXCLUDING METERS OF HEADING 9028; INSTRUMENTS AND APPARATUS FOR MEASURING OR DETECTING ALPHA, BETA, GAMMA, X-RAY, COSMIC OR OTHER IONISING RADIATIONS - OTHER INSTRUMENTS AND APPARATUS, FOR MEASURING OR CHECKING VOLTAGE, CURRENT, RESISTANCE OR POWER: -- OTHER, WITHOUT A RECORDING DEVICE:OTHER were the top imported HS Codes by DYNAMICS CIRCUIT VIETNAM JOINT STOCK COMPANY in 2021.